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EKF PROxima RKF-31 - Page 3

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3
Characteristics Values
Voltage asymmetry range, % Adjustable 5~20% Fixed 8%
U> trip delay Fixed 2 s
U< trip delay Fixed 2 s
Asymmetry trip delay Fixed 2 s
Voltage hysteresis, V 6
Asymmetry hysteresis 2%
Time delay for phase loss and phase sequence
fault, s
<0,5
Trip delay accuracy, % ±10% +0,1 s
Set-point accuracy, % 1 (full scale)
Rated insulation voltage, (Ui), V 480
Output contacts 2 C/O
Rated current, A 8 / 250V AC1
Electrical life, cycles 100 000
Mechanical life, cycles 1 000 000
Degree of protection IP20
Pollution degree 3
 –20 to +55
Conductor cross-section, mm
2
0,5–2,5
Tightening torque, N•m 0,5
Altitude above sea level, m 2000
Max. relative humidity

(non-condensing)
 –30 to +70
Mounting DIN rail